Home / 21,124.50-29,159.15-13,064.33

Finding the Fourth Proportional to 21,124.50, 29,159.15 and 13,064.33

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Solution

The fourth proportional to 21,124.50, 29,159.15 and 13,064.33 is: 18,033.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.50 : 29,159.15 = 13,064.33 : x
  2. Step 2: Convert to fraction form
    21,124.50/29,159.15 = 13,064.33/x
  3. Step 3: Cross multiply
    21,124.50x = 29,159.15 × 13,064.33
  4. Step 4: Simplify right side
    21,124.50x = 380,944,720.43
  5. Step 5: Solve for x
    x = 380,944,720.43/21,124.50
  6. Step 6: Final answer
    x = 18,033.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.